Image reading apparatus and image forming apparatus

An image reading apparatus, comprising:

• a reading unit including a transparent portion and a reading portion configured to read an image on a sheet through the transparent portion;
• a conveyance unit disposed above the reading unit and configured to convey the sheet toward the transparent portion;
• a support portion configured to support the conveyance unit openably and movably with respect to the reading unit in a vertical direction between an upper position and a lower position;
• a bundled wire transmitting a signal or electric power to the conveyance unit and passing through the reading unit;
• and
• a cover portion configured to cover the bundled wire between the reading unit and the conveyance unit, the cover portion comprising a first cover member provided on the conveyance unit and a second cover member provided movably in the vertical direction with respect to the reading unit and so as to overlap with the first cover member at inside or outside of the first cover member in a plane orthogonal to the vertical direction,
• wherein a whole length of the cover portion in the vertical direction in a case where the conveyance unit is located at the upper position is longer than a whole length of the cover portion in the vertical direction in a case where the conveyance unit is located at the lower position,
• wherein the first cover member comprises an abutment portion configured to come into contact with the second cover member on the way of the conveyance unit moving from the lower position to the upper position, and
• wherein the second cover member is configured to move upward together with the first cover member in a state in which the second cover member is in contact with the abutment portion.